Stress is the body's response to any request or any pressure that affect humans both physically and mentally.Causes:+ external environment: weather, noise, transport and the environment pollution+ from the social and family conflict, the requirements of the work about the time effort, ...+ physical problems: illness, insufficient nutrition, ...+ each person's thoughts: examsinfluence: influence human health, affecting the progress of the work, ...solution: exercise, sleep-eating in moderation, play, relax ....
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